215135252036 has 96 divisors (see below), whose sum is σ = 395796602880. Its totient is φ = 102238101504.

The previous prime is 215135252011. The next prime is 215135252069. The reversal of 215135252036 is 630252531512.

It is a junction number, because it is equal to n+sod(n) for n = 215135251987 and 215135252005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 464654741 + ... + 464655203.

It is an arithmetic number, because the mean of its divisors is an integer number (4122881280).

Almost surely, 2^215135252036 is an apocalyptic number.

It is an amenable number.

215135252036 is a deficient number, since it is larger than the sum of its proper divisors (180661350844).

215135252036 is a wasteful number, since it uses less digits than its factorization.

215135252036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

Adding to 215135252036 its reverse (630252531512), we get a palindrome (845387783548).

The spelling of 215135252036 in words is "two hundred fifteen billion, one hundred thirty-five million, two hundred fifty-two thousand, thirty-six".